"Unless you’re willing to put them in a plastic bubble until they are adults and stop doing that, they’re going to get sick." And in practice, this would be a

"Unless you’re willing to put them in a plastic bubble until they are adults and stop doing that, they’re going to get sick." And in practice, this would be a really bad idea, because the moment you open that plastic bubble, all the pathogens that are constantly in the air anyway, will hit them bad, as they are totally unprepared for it. One of the theories why children put everything in their mouth, is exactly to expose them to world of microorganisms early on, so they can get used to it, while their immune system is developing.